CN202313683U - Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system - Google Patents
Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system Download PDFInfo
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- CN202313683U CN202313683U CN2011203344277U CN201120334427U CN202313683U CN 202313683 U CN202313683 U CN 202313683U CN 2011203344277 U CN2011203344277 U CN 2011203344277U CN 201120334427 U CN201120334427 U CN 201120334427U CN 202313683 U CN202313683 U CN 202313683U
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Abstract
The utility model relates to a posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system, which consists of a minimally-invasive bone cement spinal internal fixing system implant and corresponding surgical instruments. The minimally-invasive bone cement spinal internal fixing system implant comprises a pedicle screw, a pre-bent connecting bar and a jackscrew; and the corresponding surgical instruments comprise an implanting and correcting tool corresponding to the implant, and particularly comprise tools special for minimally-invasive percutaneous surgery and bone cement injection besides general surgical tools. The utility model has the advantages that: the system has low trauma by combining the advantages of minimally-invasive surgery and bone cement injection fixation; by injecting bone cement, the pulling resistance of the screws is enhanced, and complications such as instability, loosening, relapse and the like of the spinal column can be avoided; and the system is particularly suitable for senile osteoporosis patients.
Description
[technical field]
This utility model relates to the spinal surgery technical field of medical instruments, specifically, is a kind of thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system.
[background technology]
Common breast lumbar vertebra spinal disease comprises degeneration, fracture, tumor, infection etc., and spinal operation and internal fixation are applied to the history of clinical existing last 100 years, from the material to the design, have made significant headway.Traditional internal fixation of spine operation wound is bigger, and soft tissue cuts and peels off widely, causes hemorrhage morely easily, and the dissect physiology of spinal column changes and vertebral body is unstable, complication such as postoperative rehabilitation time lengthening.The minimally invasive spine surgical operation is since the development seventies in last century, and the orthopedist progressively recognizes the necessity and the importance of minimally invasive spine surgical at present, and will become the developing direction of spinal surgery.
Along with the progress of spinal surgery new technique, bone cement materialogy, biomechanics Research, bone cement has obtained using widely in field of spinal surgery.At present, the application of bone cement in spinal surgery is mainly in the following aspects: 1, percutaneous kyphoplasty art (PKP) and percutaneous vertebroplasty (PVP) are treated pathologic vertebral compression fracture and the intractable pain that osteoporosis, vertebral body hemangioma, myeloma etc. cause; 2, tumor of spine row vertebral resection postoperative is as the embedded material that carries spinal column; 3, serve as pharmaceutical carrier; 4, reinforce spine pedicle screws nail road.Bone cement is injected vertebral body, can strengthen rigidity and the intensity of vertebral body, rebuild the stability of spinal column, reach alleviating pain, correct kyphosis deformity, improve patient's purpose of quality of life.This is particularly effective for sufferers of osteoporosis face.
Report according to Chinese Medical Association: China has got into the aging society stage, and the spinal column disease incidence surpasses 30% in the domestic over-65s aging population.The operation of traditional open formula, bigger for patient's wound, the old or relatively poor patient of whole body situation can not undergo surgery, and the operative rehabilitation time is longer, and causes complication such as postoperative unstable spine, internal fixation become flexible, postoperative recurrence easily.Particularly the senile osteoporosis patient becomes flexible owing to its sclerotin reason more is prone to internal fixation.
Therefore,, a kind of minimally invasive spine internal fixation system that combines bone cement to inject is provided, important effect and meaning is arranged for the treatment of senile osteoporosis patient spinal disease along with the development of material and medical skill.Wherein the pain of Minimally Invasive Surgery mode ability reduction of patient is damaged little; The resistance to plucking of the screw of bone cement injection can increasing is simultaneously exerted oneself, and strengthens the strength and stiffness of vertebral body.
[utility model content]
The purpose of this utility model is to overcome the deficiency of prior art, and a kind of thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system is provided; This internal fixation system has combined Minimally Invasive Surgery and the fixed advantage of bone cement; When realizing Minimally Invasive Surgery; Inject bone cement through the hollow pedicle screw, the resistance to plucking that strengthens screw is exerted oneself, and system trauma is little; Simultaneously can avoid taking place complication such as unstable spine, loosening, recurrence, be specially adapted to the senile osteoporosis patient.
The purpose of this utility model realizes through following technical scheme:
A kind of thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system is made up of Wicresoft's bone cement spinal internal fixation system implant and corresponding operating theater instruments;
Described Wicresoft bone cement spinal internal fixation system implant comprises pedicle screw, pre-bending pitman and jackscrew;
Described pedicle screw is a hollow design, side, the place ahead perforate simultaneously or groove, and hole or groove quantity can be for a plurality of, and the size of side perforate or groove is closely more little more from the bone cement injection end; Screw adopts special-purpose injection tool to inject after implantation, and the bone cement of injection passes pedicle of vertebral arch by the mesopore of pedicle screw, gets into vertebral body from pedicle screw the place ahead side opening or groove, increases resistance to plucking and exerts oneself;
Described pre-bending pitman is curved, and an end is tapered to be dwindled gradually, so that percutaneous is implanted, the other end is provided with and holds the groove of excellent device coupling;
The described jackscrew outside is provided with screw thread, and an end is provided with interior plum blossom hole, and the other end is provided with pointed projections, and for the single step locking device or be two step locking devices, it is used for the locking rod, after rod is put into, thereby is screwed into the locking rod;
Described corresponding operating theater instruments comprises the implantation and the orthopedic instrument of hollow pedicle screw and pre-bending pitman, except general operation tool, particularly including the specific purpose tool to micro-wound percutaneous operation and bone cement injection; Like puncture needle; The puncture needle sleeve pipe; The tip guide pin; Spherical guide pin; Hollow gag; Dilator; Hollow boring bit; Hollow screw tap; Opening screw stretcher; The screw stretcher of remaining silent; The screw mounting seat; The screw mounting guide sleeve; Opening screw stretcher sleeve pipe; Stretcher locking spanner; Follow closely device on the hollow; The bone cement syringe; The rod measuring device; Hold excellent device; The rod locker; The push rod device; The fascia separator; Plug screw is held and is got device; Prelum; Crow bar; Antitorque spanner; Final impact wrench etc.
This utility model implant and instrument are supporting fully; Gag, open circuit device, screw tap, pedicle screw, on to follow closely device be hollow design, the diameter of hollow is identical with guide pin.
The specially designed hollow Universal-head of this utility model pedicle screw, screw stretcher and hold excellent device, after this cover apparatus can be guaranteed pedicle screw, the pitman percutaneous inserted the ailhead of screw, and pressurizes through screw stretcher sleeve pipe.
This utility model adopts the good pitman of pre-bending, has stronger biomechanical stability, and littler to little joint injury, soft tissue is peeled off still less, can lower the damage to muscle of back, ligament and fascia to greatest extent.
This utility model implant pedicle screw and pre-bending pitman have different specification size, choose use in the art according to actual needs.
Compared with prior art, the good effect of this utility model is:
A kind of thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system; In conjunction with Minimally Invasive Surgery and bone cement inject fixed advantage; System trauma is little; The injection of bone cement strengthens the resistance to plucking of screw exerts oneself, and can avoid taking place complication such as unstable spine, loosening, recurrence, is specially adapted to the senile osteoporosis patient.
[description of drawings]
Figure 1A Figure 1B Fig. 1 C Fig. 1 D this utility model hollow pedicle screw sketch map; 1A this utility model schematic three dimensional views one; 1B this utility model schematic three dimensional views two; 1C this utility model cutaway view one; 1D this utility model cutaway view two;
Fig. 2 A Fig. 2 B Fig. 2 C Fig. 2 D this utility model jackscrew sketch map; 2A two steps locking jackscrew schematic three dimensional views; 2B locking plug screw schematic three dimensional views; 2C pressure bar screw schematic three dimensional views; 2D pressure bar screw side view; 2E pressure bar screw side view;
Fig. 3 this utility model jackscrew sketch map;
Fig. 4 A Fig. 4 B this utility model screw stretcher sketch map; The 4A screw stretcher schematic three dimensional views of remaining silent; 4B opening screw stretcher schematic three dimensional views;
Fig. 5 this utility model operation technique---screw and stretcher assembling sketch map 1;
Fig. 6 this utility model operation technique---screw and stretcher assembling sketch map; 6A screw and stretcher assembling sketch map 1; 6B screw and stretcher assembling sketch map 2; 6C screw and stretcher assembling sketch map 3; 6D screw and stretcher assembling sketch map 4; 6E screw and stretcher assembling sketch map 5;
Fig. 7 A Fig. 7 B this utility model operation technique---screw is screwed into sketch map; 7A (when stretcher is remained silent in connection) screw is screwed into sketch map; 7B (during the connection opening stretcher) screw is screwed into sketch map;
Fig. 8 A Fig. 8 B this utility model operation technique---bone cement injection sketch map; 8A (during the connection opening stretcher) bone cement injection sketch map; 8B when stretcher (connection remain silent mouthful) bone cement injection sketch map;
Fig. 9 this utility model operation technique---rod with hold excellent device and be connected sketch map;
Figure 10 this utility model operation technique---put excellent sketch map;
Figure 11 this utility model operation technique---push rod sketch map;
Figure 12 this utility model operation technique---jackscrew is screwed into sketch map;
Figure 13 this utility model operation technique---remove and hold excellent device sketch map;
Figure 14 this utility model operation technique---the antagonism spanner is finally locked sketch map;
Figure 15 this utility model operation technique---remove screw stretcher sketch map.
Reference numeral explanation: 1, pedicle screw, 11, screw cap, 12, packing washer, 13, the nail body, 111, female thread, 112, U moldeed depth groove, 113, groove; 114, spherical mortar cup, 115, inverted draw cut, 121, convexity, 122, U type groove, 123, spherical mortar cup, 131, hollow hole, 132, the side fluting; 133, side fluting, 134, the side perforate, 135, screw thread, 136, bulb, 137, inner hexagonal hole, 2, jackscrew; 21, locking plug screw, 22, the pressure bar screw, 211, external screw thread, 212, female thread, 213, cross recess, 221, external screw thread; 222, interior plum blossom hole, 223, the top tip, 3, the pre-bending pitman, 31, the tapered reduction end, 32, groove, 33, arcuation; 41, opening screw stretcher, 42, the screw stretcher of remaining silent, 43, screw extends assembler, 44,, screw is to wire guider, 45, grooved nut check device; 46, screw stretcher sleeve, 47, follow closely device on the hollow, 471, follow closely handle on the hollow, 472, on follow closely bar in the device, 473, on follow closely the device overcoat, 48, excellent locker; 49, hold excellent device, 50, the push rod device, 51, tampon holder, 52, antitorque spanner, 53, guide pin, 54, the bone cement syringe.
[specific embodiment]
The specific embodiment of this utility model kind thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system below is provided.
Figure 1A Figure 1B Fig. 1 C Fig. 1 D, Fig. 2 A Fig. 2 B Fig. 2 C Fig. 2 D, 3 are the implant sketch map.Wherein Figure 1A Figure 1B Fig. 1 C Fig. 1 D is a hollow pedicle screw sketch map, 1A this utility model schematic three dimensional views one; 1B this utility model schematic three dimensional views two; 1C this utility model cutaway view one; 1D this utility model cutaway view two; Fig. 2 A Fig. 2 B Fig. 2 C Fig. 2 D this utility model jackscrew sketch map; 2A two steps locking jackscrew schematic three dimensional views; 2B locking plug screw schematic three dimensional views; 2C pressure bar screw schematic three dimensional views; 2D pressure bar screw side view; 2E pressure bar screw side view; Fig. 3 is a pre-bending pitman sketch map;
Like Figure 1A, 1B, 1C, shown in the 1D, hollow pedicle screw 1 is made up of three parts, screw cap 11, packing washer 12 and nail body 13.Screw cap 11 is provided with U moldeed depth groove 112; Inside is provided with female thread 111; Inwall is provided with groove 113, in order to spacing to packing washer; Inside is provided with spherical mortar cup 114, in order to cooperate with nail body head; Afterbody is provided with inverted draw cut 115, in order to lock with screw stretcher coupling.Packing washer 12 is provided with U type groove 122; Both sides of the edge are provided with convexity 121, cooperate in order to spacing with the groove 113 of screw cap; Packing washer 12 lower ends are provided with spherical mortar cup 123.Nail body 13 is a hollow design 131; Side perforate or groove 132,133,134, along with more little from the nearlyer perforate of bone cement injection segment distance, perforate size 132＞133＞134; The nail body is provided with screw thread 135; Nail body 13 heads are spheroid 136; The nail end of body is provided with inner hexagonal hole 137.
Like Fig. 2 A, 2B, 2C, 2D, shown in the 2E, jackscrew 2 is two locking devices, is made up of locking plug screw 21 and pressure bar screw 22 two parts.Locking plug screw 21 is provided with external screw thread 211, female thread 212 and cross recess 213.Pressure bar screw 22 is provided with external screw thread 221, interior plum blossom hole 222 and top tip 223.
As shown in Figure 3, pre-bending pitman 3 one ends are tapered to dwindle 31 gradually, so that percutaneous is implanted; The other end is provided with and holds the groove 32 of excellent device device coupling; Excellent curved shape 33 of while.
Fig. 4-15 is instrument and operation technique sketch map.Below in conjunction with accompanying drawing operation technique is further specified.
1. set up service aisle.
Longitudinal cut cuts skin and fascia, inserts puncture needle.Use normotopia and side position perspective, biopsy needle guide gets into the entry point between little joint and transverse process.Confirm that the guide pin syringe needle is positioned at the outer rim of pedicle of vertebral arch on the positive bit slice.After be screwed into the center of puncture needle until pedicle of vertebral arch, and guarantee that through normotopia, side position perspective guide pin do not wear out pedicle wall.Remove the puncture needle inner core.
2. placement guide pin
The screw thread guide pin is inserted the puncture needle sleeve pipe.After extract the puncture needle sleeve pipe.
3. pedicle of vertebral arch is prepared
When preparing the pedicle of vertebral arch tapping, earlier with dilator intramedullary expansion jacket casing outside guide pin and insert surface of bone.Use perspective to confirm.Expansion sleeve outside on the intramedullary expansion bush outer sleeve, and intactly be placed on the entry point.After guide pin and outer expansion sleeve lock, remove the intramedullary expansion sleeve.
Insert the cortical bone place enlarging of hollow boring bit along guide pin at the pedicle of vertebral arch entry point.The hollow of suitable dimension is enclosed within the guide pin place and is screwed into pedicle of vertebral arch from boring screw tap, during tapping, notice checking that sounding mark and the vertical marker on the guide pin excessively is screwed into and rotates avoiding, and do not attack to guide pin.The sounding mark on the screw tap simultaneously can be used for confirming the length of screw.Remove screw tap, use the talent scout to confirm that in guide pin is other pedicle of vertebral arch is complete.
4. the assembling of screw and screw stretcher
Like Fig. 4 A, 4B for the operation of single-unit section percutaneous, recommends to use an opening screw stretcher 41 and the screw stretcher 42 of remaining silent.For guaranteeing correct connection, screw 1 should use extension assembler 43 with screw wire guider 44 to be assisted, like Fig. 5.Select suitable screw to extend assembler according to the sounding mark on the outer expansion sleeve.The required suitable screw screw of packing into is extended in the assembler 43, connect wire guider 44 at the assembler top again.
Like Fig. 6 A, will keep the direction of opening stretcher to the etching line on fluting on the wire guider 44 and the opening screw stretcher 41 alignment, with it along wire guider is down inserted, until touching the screw afterbody.The screw stretcher revolved turn 90 degrees,, hear that the sound of " click " representes that screw is hunted down like Fig. 6 B.Use grooved nut check device 45 lock screw 1 and screw stretcher 41, like Fig. 6 C.Remove and extend assembler 43 and guider 44, the inspection screw is connected firm correct with stretcher, like Fig. 6 D.After connecting firmly, screw stretcher sleeve 46 is inserted opening screw stretchers 41 to confirm safety, like Fig. 6 E.
In opening screw stretcher 41, insert nail device 47 on the hollow; Like Fig. 7 A, 7B, on follow closely that bar 472 anterior hexagonal terminations cooperate with the inner hexagonal hole of following closely body 13 in the device; Last nail device overcoat 473 anterior external screw threads are screwed into the head of a nail 11, and so far nail device 47 is connected stable on the hollow with screw 1.
Grooved nut check device 45 repeats the same step for closure screws stretcher 42, except will insert the closure screws stretcher.
5. be screwed into pedicle screw and inject bone cement
Like Fig. 7 A, 7B inserts pedicle of vertebral arch with the load module of the screw along guide pin, is screwed into pedicle screw 1.Guide pin 53 can remove after screw is screwed into pedicle of vertebral arch.When being screwed into screw, recommend to use perspective to guarantee that screw position is suitable.
Remove on the hollow nail device handle 471, bar 472 in bone cement syringe 54 and the last nail device is connected, like Fig. 8 A, 8B.On hollow pedicle screw 1, inject bone cement.The bone cement that injects passes pedicle of vertebral arch by the mesopore 131 of pedicle screw, from the side opening or the groove entering vertebral body of pedicle screw 1.The slowly injection of control bone cement when using the bone cement injection device.
After injecting completion, will go up 473 reverse rotations of nail device overcoat earlier and separate, then remove nail device 47 on the hollow with screw.
Repeat above step, at all sections pedicle screws.Remove the outer stretcher sleeve 46 of opening screw stretcher.
Rod with hold excellent device and be connected
Use excellent measuring device, the pre-bending rod of decision appropriate size.Excellent locker 48 inserted holds excellent device 49, until the contact, and its locking is held until rod 3 tight, like Fig. 9.Remove excellent locker 48 and confirm that rod has connected accurately.
7. put rod
For the operation of single-unit section percutaneous, its step is following:
(1). with the register of screw stretcher 41,42, rotate the screw stretcher 42 of remaining silent, aligned screw stretcher 41.
(2). slowly rod 3 is down straightened to it along the screw stretcher 42 of remaining silent and touch screw 1 afterbody or can allow the deep-seated of its arrival to put, like Figure 10 A until surrounding tissue
(3). will hold excellent device 49 and revolve and turn 90 degrees
(4). the handle that will hold excellent device 49 is inserted the far-end of the screw stretcher 42 of remaining silent, like Figure 10 C.
(5). at opening screw stretcher 41 overcoat screwing stretcher sleeves 46, again push rod device 50 is inserted opening screw stretcher 41, like Figure 11.Perspective is confirmed the position of rod in the art.
For guaranteeing excellent correct position, when push rod device 50 is in opening screw stretcher, mentions and hold excellent device 49.If hold excellent device also with on carry, explain that then rod has boosted the push rod device, prove excellent in the screw afterbody.
8. jackscrew is screwed into.
Get one piece of jackscrew to tampon holder 51, insert the convexity of back handles distal, stable until jackscrew.The guiding tampon holder is slowly locked jackscrew with locking rod 3, like Figure 12 after getting into opening screw stretcher 41.
Hold excellent device 19. remove.
Before removing, confirm that through X-ray in the art far-end of rod is positioned at the screw afterbody and rod exposes each screw afterbody 5mm earlier.Like Figure 13, insert excellent locker 48 to holding excellent device 49.Reverse rotation, with rod 3 with hold excellent device 49 and break away from.Remove excellent locker 48 and screw stretcher sleeve 46.Repeating above step is screwed into jackscrew in the screw stretcher 42 of remaining silent.
10. pressurization
Place screw stretcher lateral skin surface direction to slide prelum.T type handle is placed the prelum top, and it is inboard to be positioned at 2 screw stretchers.Insert final impact wrench in closure screws stretcher IT jackscrew.Pressurization, and locking jackscrew.Strutting operation can realize through T type handle being placed the prelum below and being positioned at 2 screw stretcher inboards.
11. final locking
12. remove the screw stretcher
The screw stretcher sleeve pipe 46 that opening screw stretcher is outer removes.Use grooved nut check device 45 to separate opening screw stretcher.4190 ° of rotary screw stretchers also remove.Repeat identical step for closure screws stretcher 42, like Figure 15.
The above only is the preferred implementation of this utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model design; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in the protection domain of this utility model.
Claims (5)
1. a thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system is characterized in that, is made up of Wicresoft's bone cement spinal internal fixation system implant and corresponding operating theater instruments;
Described Wicresoft bone cement spinal internal fixation system implant comprises pedicle screw, pre-bending pitman and jackscrew;
Described corresponding operating theater instruments is a puncture needle; The puncture needle sleeve pipe; The tip guide pin; Spherical guide pin; Hollow gag; Dilator; Hollow boring bit; Hollow screw tap; Opening screw stretcher; The screw stretcher of remaining silent; The screw mounting seat; The screw mounting guide sleeve; Opening screw stretcher sleeve pipe; Stretcher locking spanner; Follow closely device on the hollow; The bone cement syringe; The rod measuring device; Hold excellent device; The rod locker; The push rod device; The fascia separator; Plug screw is held and is got device; Prelum; Crow bar; Antitorque spanner; Final impact wrench.
2. a kind of thoracic and lumbar vertebral posterior as claimed in claim 1 Wicresoft bone cement spinal internal fixation system; It is characterized in that described pedicle screw is a hollow shape, side, the place ahead perforate simultaneously or groove; Hole or groove quantity are a plurality of, and the size of side perforate or groove is closely more little more from the bone cement injection end.
3. a kind of thoracic and lumbar vertebral posterior as claimed in claim 1 Wicresoft bone cement spinal internal fixation system is characterized in that described pre-bending pitman is curved, and an end is tapered to be dwindled gradually, and the other end is provided with and holds the groove of excellent device coupling.
4. a kind of thoracic and lumbar vertebral posterior as claimed in claim 1 Wicresoft bone cement spinal internal fixation system; It is characterized in that the described jackscrew outside is provided with screw thread, an end is provided with interior plum blossom hole; The other end is provided with pointed projections; For the single step locking device perhaps is two step locking devices, after rod is put into, thereby be screwed into the locking rod.
5. a kind of thoracic and lumbar vertebral posterior as claimed in claim 1 Wicresoft bone cement spinal internal fixation system is characterized in that described pedicle screw and pre-bending pitman have different specification size, chooses use in the art according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203344277U CN202313683U (en) | 2011-09-07 | 2011-09-07 | Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203344277U CN202313683U (en) | 2011-09-07 | 2011-09-07 | Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system |
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| Publication Number | Publication Date |
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| CN202313683U true CN202313683U (en) | 2012-07-11 |
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| CN2011203344277U Expired - Fee Related CN202313683U (en) | 2011-09-07 | 2011-09-07 | Posterior thoracolumbar minimally-invasive bone cement spinal internal fixing system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330588A (en) * | 2013-06-24 | 2013-10-02 | 李明 | Minimal invasive fracture restoration and fixing bracket system |
| CN103405268A (en) * | 2013-02-26 | 2013-11-27 | 张雪松 | Pedicle screw reinforcing system adopting minimally invasive technology and high-pressure bone cement injection technology |
| CN107736925A (en) * | 2017-11-14 | 2018-02-27 | 山东威高骨科材料股份有限公司 | The installation method of sleeve, the servicing unit for installing pitman and pitman |
| CN108606825A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of osteoporosis pedicle screw |
| CN108784815A (en) * | 2018-07-17 | 2018-11-13 | 瑞赛得医疗科技(常州)有限公司 | A kind of closed bone cement pedicle screw of band guide front end |
| CN109124752A (en) * | 2018-09-14 | 2019-01-04 | 创辉医疗器械江苏有限公司 | A kind of vertebral column minimally invasive Cement fixation device assembly |
-
2011
- 2011-09-07 CN CN2011203344277U patent/CN202313683U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405268A (en) * | 2013-02-26 | 2013-11-27 | 张雪松 | Pedicle screw reinforcing system adopting minimally invasive technology and high-pressure bone cement injection technology |
| CN103330588A (en) * | 2013-06-24 | 2013-10-02 | 李明 | Minimal invasive fracture restoration and fixing bracket system |
| CN108606825A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of osteoporosis pedicle screw |
| CN107736925A (en) * | 2017-11-14 | 2018-02-27 | 山东威高骨科材料股份有限公司 | The installation method of sleeve, the servicing unit for installing pitman and pitman |
| CN108784815A (en) * | 2018-07-17 | 2018-11-13 | 瑞赛得医疗科技(常州)有限公司 | A kind of closed bone cement pedicle screw of band guide front end |
| CN109124752A (en) * | 2018-09-14 | 2019-01-04 | 创辉医疗器械江苏有限公司 | A kind of vertebral column minimally invasive Cement fixation device assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20190907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |